ME310G1 Hardware Design Guide
1VV0301588 Rev. 12
Page 41 of 96
2021-06-14
In some use cases ON_OFF* can be tied fix LOW taking in account two limitations:
1.
PSM wake-up asynchronous capability will be lost.
2.
To perform an unconditional shutdown it is necessary to send AT#SYSHALT
command and then cut Vbatt.
Power Off
The proper procedure to power-off the module is to use the AT#SHDN command.
An alternative procedure is to use ON_OFF* pin as described in the following procedure:
Figure 6: Modem OFF Proc flow chart
“Modem OFF Proc.”
START
ON_OFF*/WAKE* = LOW
PWRMON=ON?
Delay >= 3 sec
ON_OFF*/WAKE* = HIGH
“Modem OFF Proc.”
END
Y
N
